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Hypervelocity impact on Zr_51Ti_5Ni_10Ci_25Al_9 bulk metallic glass

机译：超高速对Zr_51Ti_5Ni_10Ci_25Al_9大块金属玻璃的影响

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摘要

In this study, the hypervelocity impact experiments were performed on Zr_51Ti_5Ni_10Ci_25Al_9 bulk metallic glass using a two-stage light gas gun. The morphologies of the bullet holes exhibit three different regions: melting area, vein-pattern area, and radiating core feature area, suggesting that various regions experience different stress states during the hypervelocity impact. For the post-impact samples, the nano-hardness increases and plastic deformability decreases both with the increase in the distance from the bullet hole and with the decrease in the impact velocity, which is discussed by means of spherical stress wave theory and free-volume model.
机译：在这项研究中，使用两级轻气枪在Zr_51Ti_5Ni_10Ci_25Al_9大块金属玻璃上进行了超高速冲击实验。弹孔的形貌表现出三个不同的区域：熔化区域，静脉图案区域和辐射核心特征区域，这表明在超高速撞击过程中，各个区域会经历不同的应力状态。对于撞击后的样品，随着距弹孔距离的增加和冲击速度的减小，纳米硬度增加，塑性变形能力降低，这是通过球面应力波理论和自由体积讨论的。模型。

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  • 来源
    《Materials Science and Engineering》 |2011年第2011期|p.352-360|共9页
  • 作者

    W.Zheng; Y.J. Huang; B.J. Pang; J. Shen;

  • 作者单位

    State Key Laboratory of Advanced Welding and Joining, Harbin Institute ofTechnology, Harbin 150001, China;

    State Key Laboratory of Advanced Welding and Joining, Harbin Institute ofTechnology, Harbin 150001, China,Key Laboratory of Micro-systems and Micro-structures Manufacturing (Harbin Institute ofTechnology), Ministry of Education, China;

    Hypervelocity Impact Research Center, Harbin Institute ofTechnology, Harbin 150001, China;

    State Key Laboratory of Advanced Welding and Joining, Harbin Institute ofTechnology, Harbin 150001, China;

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  • 原文格式 PDF
  • 正文语种 eng
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  • 关键词

    bulk metallic glass hypervelocity impact deformation mechanism stress wave free volume;

    机译：大块金属玻璃超高速冲击变形机制应力波自由体积;

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